Package weka.estimators
Class DDConditionalEstimator
- java.lang.Object
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- weka.estimators.DDConditionalEstimator
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- All Implemented Interfaces:
RevisionHandler
,ConditionalEstimator
public class DDConditionalEstimator extends java.lang.Object implements ConditionalEstimator
Conditional probability estimator for a discrete domain conditional upon a discrete domain.- Version:
- $Revision: 1.8 $
- Author:
- Len Trigg (trigg@cs.waikato.ac.nz)
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Constructor Summary
Constructors Constructor Description DDConditionalEstimator(int numSymbols, int numCondSymbols, boolean laplace)
Constructor
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addValue(double data, double given, double weight)
Add a new data value to the current estimator.Estimator
getEstimator(double given)
Get a probability estimator for a valuedouble
getProbability(double data, double given)
Get a probability estimate for a valuejava.lang.String
getRevision()
Returns the revision string.static void
main(java.lang.String[] argv)
Main method for testing this class.java.lang.String
toString()
Display a representation of this estimator
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Constructor Detail
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DDConditionalEstimator
public DDConditionalEstimator(int numSymbols, int numCondSymbols, boolean laplace)
Constructor- Parameters:
numSymbols
- the number of possible symbols (remember to include 0)numCondSymbols
- the number of conditioning symbolslaplace
- if true, sub-estimators will use laplace
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Method Detail
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addValue
public void addValue(double data, double given, double weight)
Add a new data value to the current estimator.- Specified by:
addValue
in interfaceConditionalEstimator
- Parameters:
data
- the new data valuegiven
- the new value that data is conditional uponweight
- the weight assigned to the data value
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getEstimator
public Estimator getEstimator(double given)
Get a probability estimator for a value- Specified by:
getEstimator
in interfaceConditionalEstimator
- Parameters:
given
- the new value that data is conditional upon- Returns:
- the estimator for the supplied value given the condition
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getProbability
public double getProbability(double data, double given)
Get a probability estimate for a value- Specified by:
getProbability
in interfaceConditionalEstimator
- Parameters:
data
- the value to estimate the probability ofgiven
- the new value that data is conditional upon- Returns:
- the estimated probability of the supplied value
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toString
public java.lang.String toString()
Display a representation of this estimator- Overrides:
toString
in classjava.lang.Object
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getRevision
public java.lang.String getRevision()
Returns the revision string.- Specified by:
getRevision
in interfaceRevisionHandler
- Returns:
- the revision
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main
public static void main(java.lang.String[] argv)
Main method for testing this class.- Parameters:
argv
- should contain a sequence of pairs of integers which will be treated as symbolic.
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